Fe-TiO2/沸石H-A光催化剂在紫外照射下降解废染料(亚甲基蓝

IF 1.4 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

AIMS Materials Science Pub Date : 2022-01-01 DOI:10.3934/matersci.2023003

R. Cahyanti, S. Sumari, F. Fajaroh, Muhammad Roy Asrori, Yana Fajar Prakasa

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引用次数: 3

摘要

工业废水中含有对人类和水生生物剧毒的不可生物降解染料。TiO2作为光催化降解产生的溶液，是废水降解的有效光催化剂之一，但其吸附能力较低。为了克服这一缺陷，本研究利用Fe-TiO2/ H-A沸石合成了一种新型光催化剂。采用浸渍法成功合成了该光催化剂，并通过XRD、XRF、SEM、FT-IR和UV-Vis DRS对其进行了系统表征。在2θ = 25.3°处的XRD衍射图显示光催化剂为锐钛矿相。SEM结果显示，该材料表面粗糙柔软，尺寸为491.49 nm。FT-IR分析得到了沸石a的特征带、Ti-O-Ti基团的振动和Fe-O基团的振动。带隙的带宽为3.16 eV。在辐照时间50 min、pH为9、亚甲基蓝浓度为20 mg/L的条件下，亚甲基蓝的光催化降解效率达到89.58%。Fe-TiO2/ H-A沸石作为一种新型光催化剂，可作为净化亚甲基蓝的替代光催化剂。

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Fe-TiO2/zeolite H-A photocatalyst for degradation of waste dye (methylene blue) under UV irradiation

Industrial wastewater contains non-biodegradable dyes that are highly toxic to humans and aquatic life. As solution from photocatalytic degradation, TiO2 is one of the effective photocatalysts for wastewater degradation, but it has low adsorption power. To overcome this deficiency, this study synthesized a new photocatalyst by Fe-TiO2/zeolite H-A. The photocatalyst was successfully synthesized by the impregnation method and was systematically characterized by XRD, XRF, SEM, FT-IR and UV-Vis DRS. XRD diffractogram at 2θ = 25.3° showed anatase phase of the photocatalyst. SEM results showed a rough and soft surface with a size of 491.49 nm. FT-IR analysis obtained the zeolite-A characteristic band, vibration of Ti-O-Ti groups and the vibration of the Fe-O group. The bandwidth of the band gap was 3.16 eV. The photocatalytic efficiency of methylene blue degradation reached 89.58% yield with optimum conditions: irradiation time of 50 min, pH 9 and concentration of methylene blue about 20 mg/L. Fe-TiO2/zeolite H-A as a new photocatalyst can be an alternative photocatalyst to purify methylene blue.

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来源期刊

AIMS Materials Science MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

3.60

自引率

0.00%

发文量

审稿时长

4 weeks

期刊介绍： AIMS Materials Science welcomes, but not limited to, the papers from the following topics: · Biological materials · Ceramics · Composite materials · Magnetic materials · Medical implant materials · New properties of materials · Nanoscience and nanotechnology · Polymers · Thin films.