|
1
|
Li J, Sun X, Duan Y, Jia D, Li Y, Wang J. Enhanced oxygen reduction reaction performance over Pd catalysts by oxygen-surface-modified SiC. CHINESE JOURNAL OF CATALYSIS 2021. [DOI: 10.1016/s1872-2067(20)63716-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
|
2
|
Wang A, Peng X, Shi N, Lu X, Yang C, He P, Wu Y. Study on the preparation of the hierarchical porous CX-TiO 2 composites and their selective degradation of PHE solubilized in soil washing eluent. CHEMOSPHERE 2020; 260:127588. [PMID: 32683010 DOI: 10.1016/j.chemosphere.2020.127588] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 06/26/2020] [Accepted: 07/01/2020] [Indexed: 06/11/2023]
Abstract
A series of CX-TiO2(Carbon Xerogel- TiO2) composites with a hierarchical porous structure were obtained through the sol-gel method followed by drying and carbonization, and have been applied to treating solubilizing wastewater containing a high concentration of phenanthrene (PHE). The characterizations demonstrated that the CX-TiO2 exhibits a hierarchical porous structure, with particles of carbon and P25 being uniformly in the matrix. Removal efficiency of CX-TiO2 on PHE in soil washing eluent (SWE) were evaluated under ultraviolet (UV) irradiation or dark condition, and P25 was employed as the reference. The results revealed that CX-TiO2(0.2) had the best removal effect on PHE, with the efficiency as high as 97.8% under UV illumination within 15 h. It demonstrated that in the process of PHE removal by CX-TiO2 whether it was under UV illumination or not, the adsorption plays a dominant role in the early stage. The kinetic behavior of PHE adsorption was fitted using the pseudo-first-order and pseudo-second-order, and Langmuir model and Freundlich models were applied to describe the PHE adsorption isotherms. The results indicating that it was a chemical adsorption process, which was influenced by the interaction between PHE and CX-TiO2, and PHE is adsorbed on the interface of CX-TiO2(0.2) in a single layer form, instead of agglomerating in the admicelle. A possible mechanism of removal of solubilized PHE in SWE was speculated, in which both hierarchical porous structure and appropriate micropores size of CX-TiO2 were indispensable to the selective adsorption and degradation of PHE. Recycling performance certificated that the selective removal efficiency of PHE could still reach 82.09% after five recycles. Thus the excellent performance testified that the CX-TiO2 have great potential in treating SWE containing solubilized PAHs.
Collapse
Affiliation(s)
- Aijing Wang
- College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, No. 29 13th Avenue, Economic and Technologic Development Zone, Tianjin, 300457, PR China.
| | - Xiao Peng
- College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, No. 29 13th Avenue, Economic and Technologic Development Zone, Tianjin, 300457, PR China.
| | - Ning Shi
- College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, No. 29 13th Avenue, Economic and Technologic Development Zone, Tianjin, 300457, PR China.
| | - Xiaohui Lu
- College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, No. 29 13th Avenue, Economic and Technologic Development Zone, Tianjin, 300457, PR China.
| | - Chunlei Yang
- College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, No. 29 13th Avenue, Economic and Technologic Development Zone, Tianjin, 300457, PR China.
| | - Ping He
- College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, No. 29 13th Avenue, Economic and Technologic Development Zone, Tianjin, 300457, PR China.
| | - Yan Wu
- College of Chemical Engineering and Materials Science, Tianjin University of Science & Technology, No. 29 13th Avenue, Economic and Technologic Development Zone, Tianjin, 300457, PR China.
| |
Collapse
|
|
3
|
Ma Y, Cui B, He L, Tian K, Zhang Z, Wang M. A novel support for platinum electrocatalyst based on mesoporous carbon embedded with bimetallic SnTi oxide as a bifunctional electrocatalyst. J Electroanal Chem (Lausanne) 2019. [DOI: 10.1016/j.jelechem.2019.113435] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
|
4
|
Kuznetsov V, Podlovchenko B, Batalov R, Filatova E. nRu⋅mPt⋅(H−3−2MoO3) composite prepared by surface redox reaction as a highly active electrocatalyst for carbon monoxide and methanol oxidation. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2018.12.147] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
|
5
|
Shang C, Wang E. Recent progress in Pt and Pd-based hybrid nanocatalysts for methanol electrooxidation. Phys Chem Chem Phys 2019; 21:21185-21199. [DOI: 10.1039/c9cp03600h] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Hybrid nanomaterials can combine merits of different components and modulate electronic states of Pt and Pd based nanocrystals simultaneously.
Collapse
Affiliation(s)
- Changshuai Shang
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
| | - Erkang Wang
- State Key Laboratory of Electroanalytical Chemistry
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun
- China
| |
Collapse
|