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Zhao H, Liang D, Zhang Q, Zhang Z, Ma X, Zhang N, Zhao M, Wang Y, Meng Z, Cong H. Polyelectrolyte modified black phosphorus/titania nanosheet heterojunction enhanced photocatalysis: Synergistic enhancement effect of interface affinity and electron transport channel. J Colloid Interface Sci 2024; 664:520-532. [PMID: 38484520 DOI: 10.1016/j.jcis.2024.03.054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 02/28/2024] [Accepted: 03/09/2024] [Indexed: 04/07/2024]
Abstract
The instability and high electron-hole recombination have limited the application of black phosphorus (BP) as an excellent photocatalyst. To address these challenges, poly dimethyl diallyl ammonium chloride (PDDA), poly (allylamine hydrochloride) (PAH), and polyethyleneimine (PEI) are introduced to the functionalization of BP (F-BP), which can not only enhance its stability, but also boost the carrier transfer. Furthermore, a high-performance heterojunction photocatalyst is fabricated using F-BP and titania nanosheets (TNs) via a layer-by-layer self-assembly approach. The experimental outcomes unequivocally indicate that F-BP exhibits fast charge migration compared to BP. The density functional theory (DFT), in situ Kelvin-probe force microscopy (KPFM) and other advanced characterization techniques collectively unfold that PDDA modified BP can notably boost separation and propagation of charges, along with an enhanced carrier abundance. In summary, this novel strategy of using polyelectrolytes to enhance the electron transfer and the stability of BP permits immense potential in building next-generation BP-based high efficiency photocatalysts.
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Affiliation(s)
- Hui Zhao
- School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, China
| | - Derui Liang
- School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, China
| | - Qian Zhang
- School of Resources and Environmental Engineering, Shandong University of Technology, Zibo, China.
| | - Zihan Zhang
- School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, China
| | - Xu Ma
- School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, China
| | - Ning Zhang
- School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, China
| | - Menglan Zhao
- School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, China
| | - Yu Wang
- School of Agricultural Engineering and Food Science, Shandong University of Technology, Zibo, China
| | - Zilin Meng
- School of Resources and Environmental Engineering, Shandong University of Technology, Zibo, China.
| | - Hailin Cong
- School of Resources and Environmental Engineering, Shandong University of Technology, Zibo, China.
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Zhang LY, Han YL, Liu M, Deng SL. Ni-Al layered double hydroxide-coupled layered mesoporous titanium dioxide (Ni-Al LDH/LM-TiO 2) composites with integrated adsorption-photocatalysis performance. RSC Adv 2023; 13:16797-16814. [PMID: 37283865 PMCID: PMC10240257 DOI: 10.1039/d3ra02160b] [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: 04/02/2023] [Accepted: 05/22/2023] [Indexed: 06/08/2023] Open
Abstract
Nickel aluminum layered double hydroxides (Ni-Al LDHs) and layered mesoporous titanium dioxide (LM-TiO2) were prepared via a simple precipitation process and novel precipitation-peptization method, respectively, and Ni-Al LDH-coupled LM-TiO2 (Ni-Al LDH/LM-TiO2) composites with dual adsorption and photodegradation properties were obtained via the hydrothermal approach. The adsorption and photocatalytic properties were investigated in detail with methyl orange as the target, and the coupling mechanism was systematically studied. The sample with the best performance was recovered after photocatalytic degradation, which was labeled as 11% Ni-Al LDH/LM TiO2(ST), and characterization and stability studies were carried out. The results showed that Ni-Al LDHs showed good adsorption for pollutants. Ni-Al LDH coupling enhanced the absorption of UV and visible light, and the transmission and separation of photogenerated carriers were also significantly promoted, which was conducive to improving the photocatalytic activity. After treatment in the dark for 30 min, the adsorption of methyl orange by 11% Ni-Al LDHs/LM-TiO2 reached 55.18%. Under illumination for 30 min, the decolorization rate of methyl orange solution reached 87.54%, and the composites also showed an excellent recycling performance and stability.
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Affiliation(s)
- Li-Yuan Zhang
- College of Chemistry and Chemical Engineering, Neijiang Normal University Neijiang 641112 China
- Key Laboratory of Fruit Waste Treatment and Resource Recycling of the Sichuan Provincial College Neijiang 641112 China
- Special Agricultural Resources in Tuojiang River Basin Sharing and Service Platform of Sichuan Province No. 1, Xingqiao Street Neijiang 641112 Sichuan China +86 832 2341577
| | - Yan-Lin Han
- College of Chemistry and Chemical Engineering, Neijiang Normal University Neijiang 641112 China
| | - Min Liu
- College of Chemistry and Chemical Engineering, Neijiang Normal University Neijiang 641112 China
- Key Laboratory of Fruit Waste Treatment and Resource Recycling of the Sichuan Provincial College Neijiang 641112 China
- Special Agricultural Resources in Tuojiang River Basin Sharing and Service Platform of Sichuan Province No. 1, Xingqiao Street Neijiang 641112 Sichuan China +86 832 2341577
| | - Sheng-Lian Deng
- College of Chemistry and Chemical Engineering, Neijiang Normal University Neijiang 641112 China
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Deng X, Wang S, Liu Y, Cao J, Huang J, Shi X. Sulfidation and NaOH etching in CoFeAl LDH evolved catalysts for an efficient overall water splitting in an alkaline solution. NANOSCALE 2023; 15:9049-9059. [PMID: 37144895 DOI: 10.1039/d3nr01276j] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
In this study, a hierarchical interconnected porous metal sulfide heterostructure was synthesized from CoFeAl layered double hydroxides (LDHs) by a two-step hydrothermal process (sulfidation and a NaOH etching process). Among the as-made samples, the CoFeAl-T-NaOH electrode exhibited excellent oxygen and hydrogen evolution reaction catalytic activities with overpotentials of 344 mV and 197 mV at the current density of 100 mA cm-2, respectively. Meanwhile, small Tafel slopes of 57.7 mV dec-1 and 106.5 mV dec-1 for water oxidation and hydrogen evolution were observed for the CoFeAl-T-NaOH, respectively. Serving as both the cathode and anode for overall water splitting, the CoFeAl-T-NaOH electrode reached a current density of 10 mA cm-2 at a cell voltage of 1.65 V with excellent stability. The enhanced electrocatalytic activity could be attributed to: the hierarchical interconnected nanosheet structure facilitating mass transport; the porous structure promoting electrolyte infiltration and reactant transfer; the heterojunction accelerating charge transfer; and the synergistic effect between them. This study offered a new clue for in situ synthesizing porous transition-metal based heterojunction electrocatalysts with a careful tuning of the sequence of sulfuration and alkaline etching to enhance the electrocatalytic performance.
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Affiliation(s)
- Xiaolong Deng
- School of Microelectronics and Data Science & Institute of Optoelectronics and New Energy, Anhui University of Technology, Ma'anshan 243032, Anhui Province, P. R. China.
| | - Shanshan Wang
- School of Microelectronics and Data Science & Institute of Optoelectronics and New Energy, Anhui University of Technology, Ma'anshan 243032, Anhui Province, P. R. China.
| | - Yi Liu
- School of Microelectronics and Data Science & Institute of Optoelectronics and New Energy, Anhui University of Technology, Ma'anshan 243032, Anhui Province, P. R. China.
| | - Jiafeng Cao
- School of Microelectronics and Data Science & Institute of Optoelectronics and New Energy, Anhui University of Technology, Ma'anshan 243032, Anhui Province, P. R. China.
| | - Jinzhao Huang
- School of Physics and Technology, University of Jinan, Jinan 250022, Shandong Province, P. R. China.
| | - Xingwei Shi
- Beijing Key Laboratory of Ionic Liquids Clean Process, CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
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Xu X, Li P, Yang S, Zhang T, Han X, Zhou G, Cao Y, Teng D. The Performance and Mechanism of a Mg-Al Double-Layer Oxide in Chloride ion Removal from an Aqueous Solution. NANOMATERIALS 2022; 12:nano12050846. [PMID: 35269333 PMCID: PMC8912365 DOI: 10.3390/nano12050846] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 02/27/2022] [Accepted: 02/28/2022] [Indexed: 12/14/2022]
Abstract
The increasing threat of chloride ions (Cl−) has led researchers to explore efficient removal technologies. Sewage treatment with a double-layer hydroxide/oxide (LDH/LDO) is receiving increasing attention. In this work, Mg-Al LDO adsorbents were produced by the calcination of the Mg-Al LDH precursor, which was constituted by improved coprecipitation. The influence of calcination temperature, calcination time, adsorbent dosage, Cl− initial concentration, contact time, and adsorption temperature on Cl− elimination was investigated systematically. The experimental results showed that a better porous structure endowed the Mg-Al LDO with outstanding adsorption properties for Cl−. The adsorption process was well matched to the pseudo-second-order kinetics model and the Freundlich model. Under optimal conditions, more than 97% of the Cl− could be eliminated. Moreover, the removal efficiency was greater than 90% even after 11 adsorption–desorption cycles. It was found that the electrostatic interaction between Cl− and the positively charged Mg-Al LDO laminate, coupled with the reconstruction of the layer structure, was what dominated the Cl− removal process.
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Affiliation(s)
- Xueqin Xu
- Henan Province Industrial Technology Research Institution of Resources and Materials, Zhengzhou University, Zhengzhou 450001, China;
| | - Peng Li
- School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China; (P.L.); (S.Y.); (T.Z.); (X.H.); (D.T.)
| | - Shichong Yang
- School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China; (P.L.); (S.Y.); (T.Z.); (X.H.); (D.T.)
| | - Tong Zhang
- School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China; (P.L.); (S.Y.); (T.Z.); (X.H.); (D.T.)
| | - Xiangke Han
- School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China; (P.L.); (S.Y.); (T.Z.); (X.H.); (D.T.)
| | - Guoli Zhou
- School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China; (P.L.); (S.Y.); (T.Z.); (X.H.); (D.T.)
- Correspondence: (G.Z.); (Y.C.); Tel.: +86-371-6778-1081 (G.Z.); +86-371-6773-9808 (Y.C.)
| | - Yijun Cao
- School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China; (P.L.); (S.Y.); (T.Z.); (X.H.); (D.T.)
- Correspondence: (G.Z.); (Y.C.); Tel.: +86-371-6778-1081 (G.Z.); +86-371-6773-9808 (Y.C.)
| | - Daoguang Teng
- School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China; (P.L.); (S.Y.); (T.Z.); (X.H.); (D.T.)
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Peng B, Wu L, Li Q, Wang Q, Li K, Zhou Z. Photodegradation of naproxen using CuZnAl-layered double hydroxides as photocatalysts. CrystEngComm 2022. [DOI: 10.1039/d2ce00633b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We herein report CuZnAl-layered double hydroxide that exhibits excellent photocatalytic degradation of naproxen in water.
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Affiliation(s)
- Bing Peng
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
- Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Changsha 410083, China
- Water Pollution Control Technology Key Lab of Hunan Province, Changsha, 410004, China
| | - Lanyan Wu
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
- Institute of Material and Chemical Engineering, Tongren University, Tongren 554300, China
| | - Qingzhu Li
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
- Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Changsha 410083, China
- Water Pollution Control Technology Key Lab of Hunan Province, Changsha, 410004, China
| | - Qingwei Wang
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
- Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Changsha 410083, China
- Water Pollution Control Technology Key Lab of Hunan Province, Changsha, 410004, China
| | - Kaizhong Li
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Zeyan Zhou
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
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