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Fu Q, Tian J, Yang J, Wang J, Li M, Jiao G, Xie Y, Yuan W, Wang C. New Insights into the Adsorption Mechanism of Vanadium Through Quaternary Ammonium Salt-Functionalized SiO 2: Synergistic Experiments Utilizing Energy Decomposition Analysis. Molecules 2025; 30:1593. [PMID: 40286186 PMCID: PMC11990143 DOI: 10.3390/molecules30071593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2025] [Revised: 03/30/2025] [Accepted: 03/31/2025] [Indexed: 04/29/2025] Open
Abstract
Introducing organic functional groups to adsorbent surfaces enhances vanadium adsorption, an effective strategy for vanadium enrichment. In a quest for a profounder comprehension of the above adsorption mechanism, this study synthesized five types of quaternary ammonium salt-functionalized silica (QAS-SiO2) and investigated the influence of functional groups, pH values, contact time, and temperature on vanadium (V) adsorption. The results indicated that the optimal QAS-SiO2 (SiO2@DMOA) achieved a vanadium adsorption rate of 99.40% and a maximum adsorption capacity of 39.16 mg g-1. SiO2@DMOA exhibited favorable adsorption selectivity for V over chromium (Cr), with a maximum separation factor (βV/Cr) of 135.42 at pH 3.3. SiO2@DMOA maintained efficient adsorption performance over five repeated cycles. A fusion of adsorption trials with energy decomposition analysis (EDA) tentatively unveiled that both chemical bonds and non-bonding interactions contributed to the interaction energy between organic functional groups and vanadium. Among them, chemical bonds accounted for 80.26%, while non-bonding interactions accounted for 19.74%. Based on EDA analysis, the interaction characteristics of different structural quaternary ammonium salts with vanadium in adsorption and extraction processes are discussed. Additionally, steric hindrance, the charge of the vanadium species, polarizability, and solvation effects, all played significant roles in the adsorption process.
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Affiliation(s)
- Qiang Fu
- School of Environmental Science and Safety Engineering, Tianjin University of Technology, No. 391, Binshui Xi Road, Xiqing District, Tianjin 300384, China; (Q.F.); (J.Y.); (J.W.); (M.L.); (G.J.); (Y.X.)
| | - Jianhua Tian
- Guangxi CNGR New Energy Science & Technology Co., Ltd., Qinzhou Port Area of China (Guangxi) Pilot Free Trade Zone, Qinzhou 535035, China;
| | - Jinjun Yang
- School of Environmental Science and Safety Engineering, Tianjin University of Technology, No. 391, Binshui Xi Road, Xiqing District, Tianjin 300384, China; (Q.F.); (J.Y.); (J.W.); (M.L.); (G.J.); (Y.X.)
| | - Jie Wang
- School of Environmental Science and Safety Engineering, Tianjin University of Technology, No. 391, Binshui Xi Road, Xiqing District, Tianjin 300384, China; (Q.F.); (J.Y.); (J.W.); (M.L.); (G.J.); (Y.X.)
| | - Meitong Li
- School of Environmental Science and Safety Engineering, Tianjin University of Technology, No. 391, Binshui Xi Road, Xiqing District, Tianjin 300384, China; (Q.F.); (J.Y.); (J.W.); (M.L.); (G.J.); (Y.X.)
| | - Gangzhen Jiao
- School of Environmental Science and Safety Engineering, Tianjin University of Technology, No. 391, Binshui Xi Road, Xiqing District, Tianjin 300384, China; (Q.F.); (J.Y.); (J.W.); (M.L.); (G.J.); (Y.X.)
| | - Yuhong Xie
- School of Environmental Science and Safety Engineering, Tianjin University of Technology, No. 391, Binshui Xi Road, Xiqing District, Tianjin 300384, China; (Q.F.); (J.Y.); (J.W.); (M.L.); (G.J.); (Y.X.)
| | - Wenjiao Yuan
- School of Environmental Science and Safety Engineering, Tianjin University of Technology, No. 391, Binshui Xi Road, Xiqing District, Tianjin 300384, China; (Q.F.); (J.Y.); (J.W.); (M.L.); (G.J.); (Y.X.)
| | - Cuihong Wang
- School of Science, Tianjin Chengjian University, No. 26, Jinjing Road, Xiqing District, Tianjin 300384, China
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Yang X, Liu P, Yu H. Adsorption of heavy metals from wastewater using reduced graphene oxide@titanate hybrids in batch and fixed bed systems. BMC Chem 2025; 19:72. [PMID: 40098039 PMCID: PMC11917053 DOI: 10.1186/s13065-025-01443-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2024] [Accepted: 03/03/2025] [Indexed: 03/19/2025] Open
Abstract
Wastewater contaminated by heavy metal ions poses serious threats to the ecosystem, needing to be well disposed of. In this study, reduced graphene oxide@titanate hybrids (rGOTHs) are synthesized to efficiently remove heavy metals from wastewater in batch and fixed bed systems. The size of prepared rGOTHs is large as hundreds of microns, which is beneficial for separation and application in batch and fixed bed system. In the batch studies, rGOTHs exhibits the fast adsorption rate and high adsorption capacity towards heavy metals, in which the adsorption kinetic and isothermal are best fitted to Pseudo-second-order kinetic model and Langmuir model, respectively. The maximum adsorption capacities of rGOTHs for Pb(II), Cd(II) and Cu(II) are 530.5, 201 and 130.5 mg/g at 298 K and pH 5, respectively. In addition, the exhausted adsorbent can be easily regenerated in alkaline hydrothermal process and the high removal efficiency is almost reserved after six cycles. Moreover, rGOTHs presents higher selective adsorption towards Pb(II) than other ions. Adsorption mechanisms are revealed to be ions exchange, electrostatic interaction, and coordination. In the fixed bed experiments, the effective treatment volume of rGOTHs-loaded column reaches to 2760 BV (15.45 L) for single Pb(II) polluted battery manufactory wastewater and 2280 BV (12.76 L) for multiple heavy metal polluted estuary effluent, before Pb(II) concentration exceeds the discharge limit of 1 mg/L. Our study demonstrates the great potential of rGOTHs to be applied in practical treatment of wastewater contaminated by heavy metal ions.
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Affiliation(s)
- Xiutao Yang
- Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, 4888 Shengbei Rd, Changchun, 130102, P. R. China
| | - Pan Liu
- Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, 4888 Shengbei Rd, Changchun, 130102, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Hongwen Yu
- Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, 4888 Shengbei Rd, Changchun, 130102, P. R. China.
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Bulin C, Guo T, Ma Y. Spectroscopic and statistical physics elucidation for Cu(II) remediation using magnetic bio adsorbent based on Fe 3O 4-chitosan-graphene oxide. Int J Biol Macromol 2024; 276:133895. [PMID: 39019360 DOI: 10.1016/j.ijbiomac.2024.133895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2024] [Revised: 06/26/2024] [Accepted: 07/13/2024] [Indexed: 07/19/2024]
Abstract
Efficient harnessing of heavy metal pollution is an urgent environmental task. Herein, magnetic bio adsorbent (MB) based on Fe3O4-chitosan-graphene oxide composite was fabricated via one step co-precipitation for adsorptive remediation of Cu(II). Remediation efficiency was evaluated by batch adsorption, meanwhile adsorption mechanism was elucidated by spectroscopic tests (XPS, UV-Vis absorption and fluorescent emission spectra), statistical physics formalism, isotherm and kinetic fittings. Results show, MB reaches adsorption percent and quantity of 87.61 % and 350.43 mg·g-1 for Cu(II) in 30 min. By virtue of paramagnetism, MB can be readily recovered with a permanent magnet for easy regeneration and cyclic use, thereby retaining adsorption quantity 279.99 mg·g-1 at the fifth cycle. The Freundlich and pseudo second order model satisfactorily describes the adsorption, designating chemical interaction as the rate limiting step. Statistical physics calculation suggests two points. (1) Multi-ionic adsorption mechanism with exothermic, spontaneous and energy lowering feature. (2) Density of adsorption sites increases with temperature, resulting in improved adsorption capacity. Spectroscopic analysis confirms the involvement of CO, CO, -NH2 in Cu(II) uptake via electron donation. These explorations contribute with novel theoretical illumination for understanding both the thermodynamic feature and atomic scale mechanism of common pollutants adsorption by bio adsorbent like Fe3O4-chitosan-graphene oxide.
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Affiliation(s)
- Chaoke Bulin
- College of Material Science and Engineering, Inner Mongolia University of Science and Technology, Baotou 014010, PR China.
| | - Ting Guo
- College of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou 014010, PR China
| | - YueLong Ma
- College of Material Science and Engineering, Inner Mongolia University of Science and Technology, Baotou 014010, PR China
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Priyadarshi R, Pourmoslemi S, Khan A, Riahi Z, Rhim JW. Sulfur quantum dots as sustainable materials for biomedical applications: Current trends and future perspectives. Colloids Surf B Biointerfaces 2024; 237:113863. [PMID: 38552287 DOI: 10.1016/j.colsurfb.2024.113863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 03/04/2024] [Accepted: 03/19/2024] [Indexed: 04/08/2024]
Abstract
Discovered over a decade ago, sulfur quantum dots (SQDs) have rapidly emerged as a sustainable, safe, and inexpensive quantum material. Sustainably synthesizing SQDs using sublimed sulfur powders, typically produced as waste in industrial petrochemical refining processes, has attracted researchers to use these functional quantum materials in various research fields. SQDs quickly found applications in various research fields, such as electronics, environmental sensing, food packaging, and biomedical engineering. Although low production yields, time-consuming and energy-intensive synthetic methods, and low photoluminescence quantum yield (PLQY) have been some problems, researchers have found ways to improve synthetic methods, develop passivating agents, and systematically modify reaction schemes and energy sources to achieve large-scale synthesis of stable SQDs with high PLQY. Nonetheless, SQDs have succeeded tremendously in biomedical and related applications due to their low toxicity, antibacterial and antioxidant properties, biocompatibility, appropriate cellular uptake, and photoluminescent properties. Although the bioimaging applications of SQDs have been extensively studied, their other reported properties indicate their suitability for use as antimicrobial agents, free radical scavengers, and drug carriers in other biomedical applications, such as tissue regeneration, wound healing, and targeted drug delivery.
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Affiliation(s)
- Ruchir Priyadarshi
- BioNanocomposite Research Center, Department of Food and Nutrition, Kyung Hee University, Seoul, South Korea
| | | | - Ajahar Khan
- BioNanocomposite Research Center, Department of Food and Nutrition, Kyung Hee University, Seoul, South Korea
| | - Zohreh Riahi
- BioNanocomposite Research Center, Department of Food and Nutrition, Kyung Hee University, Seoul, South Korea
| | - Jong-Whan Rhim
- BioNanocomposite Research Center, Department of Food and Nutrition, Kyung Hee University, Seoul, South Korea.
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Chen S, Wu L, Wu Z, Liu Z, Qiu Z, Chi L. Highly efficient removal of Sr 2+ from aqueous solutions using a polyacrylic acid/crown-ether/graphene oxide hydrogel composite. RSC Adv 2024; 14:7825-7835. [PMID: 38444965 PMCID: PMC10913416 DOI: 10.1039/d3ra08789a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Accepted: 02/25/2024] [Indexed: 03/07/2024] Open
Abstract
With the development of nuclear power, efficiently treating nuclear wastes generated during operation has attracted extensive attention. Hydrogels are common adsorbent materials in the treatment of wastewater due to their high swelling rate and easy post-treatment. In this work, a novel polyacrylic acid/crown-ether/graphene oxide (PAA/DB18C6/GO) hydrogel composite was synthesized by a radical cross-linking copolymerization method and characterized using various analytical tools such as SEM, FT-IR, TGA and XPS. The effects of time, pH, initial Sr2+ concentration, and temperature on Sr2+ adsorption onto the PAA/DB18C6/GO were studied. The PAA/DB18C6/GO shows a high adsorption capacity of 379.35 mg g-1 at an initial Sr2+ concentration of 772 mg L-1 due to the unique structure of dibenzo-18-crown-ether-6 and high swelling. The composite has a high selectivity for Sr2+ with a removal rate of 82.4% when concentrations of Na+ and K+ were 10 times higher than that of Sr2+. The pH and temperature have no apparent impact on adsorption performance of the PAA/DB18C6/GO under the experimental conditions. The composite shows excellent reusability with more than 92% removal rate for Sr2+ after five continuous cycles. In addition, the mechanism of Sr2+ adsorption by PAA/DB18C6/GO was analyzed by fitting the adsorption data to the theoretical models and XPS data.
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Affiliation(s)
- Sheng Chen
- College of Chemistry, Fuzhou University Fuzhou Fujian 350108 China
- Fujian Key Laboratory of Fuel and Materials in Clean Nuclear Energy System, Fujian Institute of Research on the Structure of Matter, CAS Fuzhou Fujian 350002 China
| | - Lina Wu
- Fujian Key Laboratory of Fuel and Materials in Clean Nuclear Energy System, Fujian Institute of Research on the Structure of Matter, CAS Fuzhou Fujian 350002 China
| | - Zhicheng Wu
- Fujian Key Laboratory of Fuel and Materials in Clean Nuclear Energy System, Fujian Institute of Research on the Structure of Matter, CAS Fuzhou Fujian 350002 China
| | - Zhikun Liu
- Fujian Key Laboratory of Fuel and Materials in Clean Nuclear Energy System, Fujian Institute of Research on the Structure of Matter, CAS Fuzhou Fujian 350002 China
| | - Zhihua Qiu
- Fujian Key Laboratory of Fuel and Materials in Clean Nuclear Energy System, Fujian Institute of Research on the Structure of Matter, CAS Fuzhou Fujian 350002 China
| | - Lisheng Chi
- Fujian Key Laboratory of Fuel and Materials in Clean Nuclear Energy System, Fujian Institute of Research on the Structure of Matter, CAS Fuzhou Fujian 350002 China
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Chang YC, Lin IC, Chin NC, Juang SE, Chou CM. Na 2Ti 3O 7@RF@Ag Heterostructures as Efficient Substrates for SERS and Photocatalytic Applications. Molecules 2023; 29:218. [PMID: 38202801 PMCID: PMC10780028 DOI: 10.3390/molecules29010218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 12/18/2023] [Accepted: 12/27/2023] [Indexed: 01/12/2024] Open
Abstract
A multi-step procedure was effectively employed to synthesize innovative three-dimensional (3D) heterostructures encompassing sodium titanate (Na2Ti3O7) nanowire cores, an intermediate resorcinol-formaldehyde (RF) layer, and outer silver (Ag) nanoparticle sheaths, referred to as Na2Ti3O7@RF@Ag heterostructures. Initially, a one-step hydrothermal technique facilitated the direct growth of single-crystal Na2Ti3O7 nanowires onto a flexible Ti foil. Subsequently, a two-step wet chemical process facilitated the sequential deposition of an RF layer and Ag nanoparticles onto the Na2Ti3O7 nanowires at a low reaction temperature. Optimal concentrations of silver nitrate and L-ascorbic acid can lead to the cultivation of Na2Ti3O7@RF@Ag heterostructures exhibiting heightened surface-enhanced Raman scattering (SERS), which is particularly beneficial for the detection of rhodamine B (RhB) molecules. This phenomenon can be ascribed to the distinctive geometry of the Na2Ti3O7@RF@Ag heterostructures, which offer an increased number of hot spots and surface-active sites, thereby showcasing notable SERS enhancement, commendable reproducibility, and enduring stability over the long term. Furthermore, the Na2Ti3O7@RF@Ag heterostructures demonstrate remarkable follow-up as first-order chemical kinetic and recyclable photocatalysts for the photodecomposition of an RhB solution under UV light irradiation. This result can be attributed to the enhanced inhibition of electron-hole pair recombination and increased surface-active sites.
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Affiliation(s)
- Yu-Cheng Chang
- Department of Materials Science and Engineering, Feng Chia University, Taichung 40724, Taiwan; (I.-C.L.); (N.-C.C.); (S.-E.J.)
| | - I-Chun Lin
- Department of Materials Science and Engineering, Feng Chia University, Taichung 40724, Taiwan; (I.-C.L.); (N.-C.C.); (S.-E.J.)
| | - Ning-Chien Chin
- Department of Materials Science and Engineering, Feng Chia University, Taichung 40724, Taiwan; (I.-C.L.); (N.-C.C.); (S.-E.J.)
- Department of Orthopedics, Antai Tian-Sheng Memorial Hospital, Antai Medical Care Corporation, Pingtung 92842, Taiwan
| | - Sin-Ei Juang
- Department of Materials Science and Engineering, Feng Chia University, Taichung 40724, Taiwan; (I.-C.L.); (N.-C.C.); (S.-E.J.)
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung 83301, Taiwan
| | - Chia-Man Chou
- Department of Surgery, Taichung Veterans General Hospital, Taichung 40705, Taiwan
- College of Medicine, National Yang Ming Chiao Tung University, Taipei 11221, Taiwan
- Department of Post-Baccalaureate Medicine, National Chung Hsing University, Taichung 40227, Taiwan
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7
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Wang Q, Sun Y, Hao M, Yu F, He J. Hydrothermal Synthesis of a Technical Lignin-Based Nanotube for the Efficient and Selective Removal of Cr(VI) from Aqueous Solution. Molecules 2023; 28:5789. [PMID: 37570758 PMCID: PMC10421463 DOI: 10.3390/molecules28155789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 07/27/2023] [Accepted: 07/29/2023] [Indexed: 08/13/2023] Open
Abstract
Aminated lignin (AL) was obtained by modifying technical lignin (TL) with the Mannich reaction, and aminated lignin-based titanate nanotubes (AL-TiNTs) were successfully prepared based on the AL by a facile hydrothermal synthesis method. The characterization of AL-TiNTs showed that a Ti-O bond was introduced into the AL, and the layered and nanotubular structure was formed in the fabrication of the nanotubes. Results showed that the specific surface area increased significantly from 5.9 m2/g (TL) to 188.51 m2/g (AL-TiNTs), indicating the successful modification of TL. The AL-TiNTs quickly adsorbed 86.22% of Cr(VI) in 10 min, with 99.80% removal efficiency after equilibration. Under visible light, AL-TiNTs adsorbed and reduced Cr(VI) in one step, the Cr(III) production rate was 29.76%, and the amount of total chromium (Cr) removal by AL-TiNTs was 90.0 mg/g. AL-TiNTs showed excellent adsorption capacities of Zn2+ (63.78 mg/g), Cd2+ (59.20 mg/g), and Cu2+ (66.35 mg/g). After four cycles, the adsorption capacity of AL-TiNTs still exceeded 40 mg/g. AL-TiNTs showed a high Cr(VI) removal efficiency of 95.86% in simulated wastewater, suggesting a promising practical application in heavy metal removal from wastewater.
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Affiliation(s)
- Qiongyao Wang
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region, Ministry of Education, School of Water and Environment, Chang’an University, Xi’an 710054, China; (Q.W.); (M.H.); (F.Y.)
| | - Yongchang Sun
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region, Ministry of Education, School of Water and Environment, Chang’an University, Xi’an 710054, China; (Q.W.); (M.H.); (F.Y.)
| | - Mingge Hao
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region, Ministry of Education, School of Water and Environment, Chang’an University, Xi’an 710054, China; (Q.W.); (M.H.); (F.Y.)
| | - Fangxin Yu
- Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region, Ministry of Education, School of Water and Environment, Chang’an University, Xi’an 710054, China; (Q.W.); (M.H.); (F.Y.)
| | - Juanni He
- Huijin Technology Holding Group Corporation Limited, Xi’an 710000, China
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Li H, Huang Y, Luo Q, Liu J. The simultaneous reduction and adsorption for V(V) and Cr(VI) anionic species in aqueous solution by polyethyleneimine cross-linked titanate nanotubes. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121682] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Tan S, Ouyang P, Zhang Q, Yang S, Wang H. Removal of Vanadium(IV) Ions from Aqueous Solution by Graphene Oxide. ChemistrySelect 2022. [DOI: 10.1002/slct.202202311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Shi‐Ying Tan
- Institute of Nanochemistry and Nanobiology Shanghai University NO.99 Shangda Road Shanghai 200444 China
| | - Peng Ouyang
- Key Laboratory of Pollution Control Chemistry and Environmental Functional Materials for Qinghai-Tibet Plateau of the National Ethnic Affairs Commission School of Chemistry and Environment Southwest Minzu University NO. 16, South Section 1st Ring Road Chengdu 610041 Sichuan China
| | - Qiangqiang Zhang
- Institute of Nanochemistry and Nanobiology Shanghai University NO.99 Shangda Road Shanghai 200444 China
| | - Sheng‐Tao Yang
- Key Laboratory of Pollution Control Chemistry and Environmental Functional Materials for Qinghai-Tibet Plateau of the National Ethnic Affairs Commission School of Chemistry and Environment Southwest Minzu University NO. 16, South Section 1st Ring Road Chengdu 610041 Sichuan China
| | - Haifang Wang
- Institute of Nanochemistry and Nanobiology Shanghai University NO.99 Shangda Road Shanghai 200444 China
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Zhou S, Wu L, Bai J, Liu X, Lei M, Long M, Huang K. Titanate Nanotubes-Based Heterogeneous Catalyst for Efficient Production of Biomass Derived Chemicals. Front Chem 2022; 10:939289. [PMID: 35734446 PMCID: PMC9207236 DOI: 10.3389/fchem.2022.939289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 05/23/2022] [Indexed: 11/13/2022] Open
Abstract
The development of efficient heterogeneous catalytic system to convert plentiful biomass to renewable bio-chemicals is urgent need. Titanate nanotubes-based materials obtained from hydrothermal treatment have been reported as low-cost and efficient catalytic materials in chemical syntheses for bio-based chemicals production with interesting catalytic performance. This mini-review expressly revealed the significance and potential of using titanate nanotubes based material as sustainable and environmentally benign solid catalysts/supports for synthesis of various bio-based chemicals, including glycerol-derived solketal, jet fuel range alkanes precursors, biomass-derived esters, aldehydes, aromatic compounds and so on. From the current knowledge on titanate nanotubes-based material via hydrothermal method here summarized, the future lines of research in the field of catalysis/supports for bio-based chemicals production are outlined.
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Affiliation(s)
- Shuolin Zhou
- School of Elementary Education, Changsha Normal University, Changsha, China
- *Correspondence: Shuolin Zhou, ; Xianxiang Liu,
| | - Lu Wu
- School of Elementary Education, Changsha Normal University, Changsha, China
| | - Junzhuo Bai
- School of Elementary Education, Changsha Normal University, Changsha, China
| | - Xianxiang Liu
- National and Local Joint Engineering Laboratory for New Petro-Chemical Materials and Fine Utilization of Resources, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, China
- *Correspondence: Shuolin Zhou, ; Xianxiang Liu,
| | - Min Lei
- School of Elementary Education, Changsha Normal University, Changsha, China
| | - Min Long
- School of Elementary Education, Changsha Normal University, Changsha, China
| | - Keying Huang
- School of Elementary Education, Changsha Normal University, Changsha, China
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Wang Q, Zhou H, Hao T, Hu K, Qin L, Ren X, Guo Z, Wang S, Hu Y. A fully integrated fast scan cyclic voltammetry electrochemical method: Improvements in reaction kinetics and signal stability for specific Ag(I) and Hg(II) analysis. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116208] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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12
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Some synthesis aspects for poorly crystalline porous sodium titanium silicate. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-022-04691-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Liu J, Huang Y, Li H, Duan H. Recent advances in removal techniques of vanadium from water: A comprehensive review. CHEMOSPHERE 2022; 287:132021. [PMID: 34454227 DOI: 10.1016/j.chemosphere.2021.132021] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Revised: 08/21/2021] [Accepted: 08/23/2021] [Indexed: 06/13/2023]
Abstract
In recent years, with the development of economy and industry, water contaminated with heavy metal has become a global environmental problem. Vanadium (V) is an emerging contaminant reported in wastewater along with the increasing mining, smelting and recovering of vanadium ores and application in many fields as a significant national strategy resource. The increasing attention has been paid to the separations of V from water due to its potential toxic to animals and human beings. In the present study, the most common V removal techniques including adsorption, microbiological treatment, chemical precipitation, solvent extraction, electrokinetic remediation, photocatalysis, coagulation and membrane filtration are presented with discussion of their advantages, limitations and the recent achievements. Several major influencing factors and mechanisms of various processes have been briefly analyzed. Some research perspectives are proposed for improving the capacities to remove V from water. The core objective of this review is to provide comprehensive information or database for the superior approach for V removal.
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Affiliation(s)
- Jianing Liu
- College of Ecology and Environment, Chengdu University of Technology, Sichuan, 610059, China
| | - Yi Huang
- College of Ecology and Environment, Chengdu University of Technology, Sichuan, 610059, China; State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, College of Geosciences, Chengdu University of Technology, China.
| | - Hanyu Li
- College of Ecology and Environment, Chengdu University of Technology, Sichuan, 610059, China
| | - Haoran Duan
- College of Ecology and Environment, Chengdu University of Technology, Sichuan, 610059, China
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Jing Q, You W, Tong L, Xiao W, Kang S, Ren Z. Response surface design for removal of Cr(VI) by hydrogel-supported sulfidated nano zero-valent iron (S-nZVI@H). WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2021; 84:1190-1205. [PMID: 34534116 DOI: 10.2166/wst.2021.312] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
In this study, a new sulfidated nanoscale zero-valent iron (S-nZVI) supported on hydrogel (S-nZVI@H) was successfully synthesized for the removal of chromium (Cr) (VI) from groundwater. The surface morphology, dispersion phenomenon and functional groups of novel S-nZVI@H were characterized by scanning electron microscopy and Fourier transform infrared spectroscopy. Box-Behnken design (BBD) optimization technology based on response surface methodology (RSM) is applied to demonstrate the influence of the interaction of S-nZVI@H dose, initial Cr(VI) concentration, contact time, and initial pH with the Cr(VI) removal efficiency. The analysis of variance results (F = 118.73, P < 0.0001, R2 = 0.9916) show that the quadratic polynomial model is significant enough to reflect the close relationship between the experimental and predicted values. The predicted optimum removal conditions are: S-nZVI@H dose 9.46 g/L, initial Cr(VI) concentration 30 mg/L, contact time 40.7 min, and initial pH 5.27, and the S-nZVI@H dose is the key factor affecting the removal of Cr(VI). The predicted value (99.76%) of Cr (VI) removal efficiency is in good agreement with the experimental value (97.75%), which verifies the validity of the quadratic polynomial model. This demonstrates that RSM with appropriate BBD can be utilized to optimize the design of experiments for removal of Cr(VI).
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Affiliation(s)
- Qi Jing
- Faculty of Architecture, Civil and Transportation Engineering, Beijing University of Technology, Beijing 100124, China E-mail:
| | - Wenhui You
- Faculty of Architecture, Civil and Transportation Engineering, Beijing University of Technology, Beijing 100124, China E-mail:
| | - Le Tong
- Faculty of Architecture, Civil and Transportation Engineering, Beijing University of Technology, Beijing 100124, China E-mail:
| | - Wenyu Xiao
- Faculty of Architecture, Civil and Transportation Engineering, Beijing University of Technology, Beijing 100124, China E-mail:
| | - Siyan Kang
- Faculty of Architecture, Civil and Transportation Engineering, Beijing University of Technology, Beijing 100124, China E-mail:
| | - Zhongyu Ren
- Faculty of Architecture, Civil and Transportation Engineering, Beijing University of Technology, Beijing 100124, China E-mail:
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