当前位置: X-MOL 学术Process Saf. Environ. Prot. › 论文详情
L-Histidine doped-TiO2-CdS nanocomposite blended UF membranes with photocatalytic and self-cleaning properties for remediation of effluent from a local waste stabilization pond (WSP) under visible light
Process Safety and Environmental Protection ( IF 4.384 ) Pub Date : 2020-01-24 , DOI: 10.1016/j.psep.2020.01.022
Hadis Zangeneh; Zahra Rahimi; Ali Akbar Zinatizadeh; Sayed Hossein Razavizadeh; Sirus Zinadini

In this study, a dual photocatalyst of TiO2-CdS doped by C, N nonmetals with the aid of L-Histidine (C, N-doped TiO2-CdS) was synthesized and then incorporated into polyethersulfone (PES) ultrafiltration (UF) membrane matrix in order to endow photocatalytic and self-antifouling properties. The resulting photocatalytic nanocomposite was first characterized by analyses of X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), field-emission scanning electron microscopy (FE-SEM), photoluminescence (PL), and UV–Vis diffuse reflectance spectroscopy (DRS). The fabricated membranes were identified through tests of SEM, contact angle and Atomic force analysis (AFM). The membranes performance was evaluated in terms of pure water flux (PWF) and antifouling experiments in a dead end set up. To find out optimum conditions and investigate photocatalytic properties under continuous visible light irradiation, the impacts of two operating variables, i.e. working pressure (P, 1-5 bar) and cross flow rate (Q, 50-150 L/h) at three levels on four responses were investigated in a continuous regime using filtration of effluent from waste stabilization pound (WSP). From the results, the highest PWF, FRR and Rr were found to be 80.37 kg/m2h, 80. 2 %, and 56. 1 % for the membrane modified by 0.5 wt. % C, N doped TiO2-CdS contrast to 60.69 kg/m2h, 33 % and 15.6 % obtained for the control membrane. At optimum conditions, i.e. 3 bar and 150 L/h, the values of PWF, FRR and COD removal were 150.6 kg/m2h, 89.5 % and 65.26 %, respectively. An improvement of 1.4, 1.5 and 1.3 times in PWF, FRR, and COD removal, respectively, were achieved for the 0.5 wt.% membrane under visible light irradiation compared to the control one. These results were attributed to super hydrophilicity, photocatalytic properties and self-antifouling.
更新日期:2020-01-24

 

全部期刊列表>>
全球疫情及响应:BMC Medicine专题征稿
欢迎探索2019年最具下载量的化学论文
新版X-MOL期刊搜索和高级搜索功能介绍
化学材料学全球高引用
ACS材料视界
南方科技大学
x-mol收录
南方科技大学
自然科研论文编辑服务
上海交通大学彭文杰
中国科学院长春应化所于聪-4-8
武汉工程大学
课题组网站
X-MOL
深圳大学二维材料实验室张晗
中山大学化学工程与技术学院
试剂库存
天合科研
down
wechat
bug