Hypercrosslinking porous polymer layers on TiO2-graphene photocatalyst: Enhanced adsorption of water pollutants for efficient degradation

被引:47
作者
Cai, Zhongjie [1 ]
Hu, Xiantao [1 ]
Li, Zhong'an [1 ]
He, Huijie [1 ]
Li, Tao [1 ]
Yuan, Hong [2 ]
Zhang, Yanrong [3 ]
Tan, Bien [1 ]
Wang, Jingyu [1 ]
机构
[1] Huazhong Univ Sci & Technol, Sch Chem & Chem Engn, Hubei Key Lab Mat Chem & Serv Failure, Key Lab Mat Chem Energy Convers & Storage,Minist E, Wuhan 430074, Peoples R China
[2] Cent China Normal Univ, Coll Chem, Key Lab Pesticide & Chem Biol, Minist Educ, Wuhan 430079, Peoples R China
[3] Huazhong Univ Sci & Technol, Sch Environm Sci & Engn, Wuhan 430074, Peoples R China
基金
中国国家自然科学基金;
关键词
Adsorption; Photodegradation; Porous polymer layer; Organic pollutants; Water treatment; METAL-ORGANIC FRAMEWORK; ANTIBIOTIC SULFAMETHOXAZOLE; ELECTRON-TRANSFER; WASTE-WATER; REMOVAL; PHOTODEGRADATION; MECHANISM; KINETICS; NANOSHEETS;
D O I
10.1016/j.watres.2022.119341
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Solar-driven photocatalysis offers an environmentally friendly and sustainable approach for the degradation of organic pollutants in water without chemical additives, but the low specific surface area and adsorption capacity of common photocatalysts restricts the surface reactions with the contaminants. Herein, we hypercrosslinked polymer layers on TiO2-graphene surface to enlarge the specific surface area from 136 to 988 m2/g, leading to a high adsorption capacity of sulfadiazine as 54.3 mg/g, which is 15.5 times that of TiO2-graphene (3.5 mg/g). The adsorption kinetics reveals the combination of physical and chemical adsorption by porous benzene-based polymer for sulfadiazine enrichment. Besides, the polymer layers with broad light absorption enable the composite to function efficiently as visible-light-driven photocatalysts. Thus, the as-designed composite exhibits excellent performance for sulfadiazine removal by integrating the adsorptive and photocatalytic processes, especially for the diluted sulfadiazine solution. More importantly, the porous polymer layer can function as a filter for weakening the interference of TiO2 surface with the natural matters from complex water matrices. Based on the identification of dominant reactive species, the possible attacking pathway and the sulfadiazine subsequent degradation are presented. Further, the enhanced adsorption and photodegradation efficiency can also be achieved for the removal of other typical pollutants such as 4-chlorophenol and methylene blue. This study highlights an adsorption-enhanced-degradation mechanism for water pollutants that can direct the design of high-performance photocatalysts under visible light.
引用
收藏
页数:12
相关论文
共 71 条
[1]   Effect of FeCl3 on sulfonamide removal and reduction of antimicrobial activity of wastewater in a photocatalytic process with TiO2 [J].
Adamek, Ewa ;
Baran, Wojciech ;
Ziemianska, Justyna ;
Sobczak, Andrzej .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2012, 126 :29-38
[2]   Simultaneous detection and removal of fluoride from water using smart metal-organic framework-based adsorbents [J].
Ahmadijokani, Farhad ;
Molavi, Hossein ;
Rezakazemi, Mashallah ;
Aminabhavi, Tejraj M. ;
Arjmand, Mohammad .
COORDINATION CHEMISTRY REVIEWS, 2021, 445
[3]   Simultaneous removal of antibiotic resistant bacteria, antibiotic resistance genes, and micropollutants by a modified photo-Fenton process [J].
Ahmed, Yunus ;
Zhong, Jiexi ;
Yuan, Zhiguo ;
Guo, Jianhua .
WATER RESEARCH, 2021, 197
[4]   Call of the wild: antibiotic resistance genes in natural environments [J].
Allen, Heather K. ;
Donato, Justin ;
Wang, Helena Huimi ;
Cloud-Hansen, Karen A. ;
Davies, Julian ;
Handelsman, Jo .
NATURE REVIEWS MICROBIOLOGY, 2010, 8 (04) :251-259
[5]   Snow Amplification of Persistent Organic Pollutants at Coastal Antarctica [J].
Casal, Paulo ;
Casas, Gemma ;
Vila-Costa, Maria ;
Cabrerizo, Ana ;
Pizarro, Mariana ;
Jimenez, Begona ;
Dachs, Jordi .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2019, 53 (15) :8872-8882
[6]   Regulation of the adsorption affinity of metal-organic framework MIL-101 via a TiO2 coating strategy for high capacity adsorption and efficient photocatalysis [J].
Chang, Na ;
Zhang, Hao ;
Shi, Meng-Shan ;
Li, Jia ;
Yin, Chen-Jia ;
Wang, Hai-Tao ;
Wang, Liang .
MICROPOROUS AND MESOPOROUS MATERIALS, 2018, 266 :47-55
[7]   Non-covalent self-assembly synthesis of AQ2S@rGO nanocomposite for the degradation of sulfadiazine under solar irradiation: The indispensable effect of chloride [J].
Chen, Cheng-Xin ;
Yang, Shan-Shan ;
Ding, Jie ;
Wang, Guang-Yuan ;
Zhong, Le ;
Zhao, Shuang-Yang ;
Zang, Ya-Ni ;
Jiang, Jun-Qiu ;
Ding, Lan ;
Zhao, Yan ;
Liu, Lu-Ming ;
Ren, Nan-Qi .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2021, 298
[8]   Semiconductor-mediated photodegradation of pollutants under visible-light irradiation [J].
Chen, Chuncheng ;
Ma, Wanhong ;
Zhao, Jincai .
CHEMICAL SOCIETY REVIEWS, 2010, 39 (11) :4206-4219
[9]   Phosphate-modified m-Bi2O4 enhances the absorption and photocatalytic activities of sulfonamide: Mechanism, reactive species, and reactive sites [J].
Chen, Ping ;
Zhang, Qianxin ;
Zheng, Xiaoshan ;
Tan, Cuiwen ;
Zhuo, Meihui ;
Chen, Tiansheng ;
Wang, Fengliang ;
Liu, Haijin ;
Liu, Yang ;
Feng, Yiping ;
Lv, Wenying ;
Liu, Guoguang .
JOURNAL OF HAZARDOUS MATERIALS, 2020, 384
[10]   Tailoring the Microporosity of Polymers of Intrinsic Microporosity for Advanced Gas Separation by Atomic Layer Deposition [J].
Chen, Xiuling ;
Wu, Lei ;
Yang, Huimin ;
Qin, Yong ;
Ma, Xiaohua ;
Li, Nanwen .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2021, 60 (33) :17875-17880