Modifying PVDF/Ppy’s mechanical and luminescent properties by incorporating ZnS nanoparticles for visible light photocatalytic water remediation: Experimental and theoretical approach

IF 5.9 3区 工程技术 Q1 CHEMISTRY, MULTIDISCIPLINARY
Fawzy G. El Desouky, A.M. Ismail, R.A. Nasr
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引用次数: 0

Abstract

The current research explores nanocomposites PVDF/Ppy/ZnS (PV/PY/ZS) manufactured using co-precipitation and casting processes to improve dynamic mechanical testing, luminescence, and visible light photocatalytic wastewater.ZS is precisely integrated and evenly distributed in the PV/PY matrix, according to XRD, FESEM, and FTIR measurements. The addition of ZS nanoparticles to the PV/PY matrix significantly enhances the change in the storage modulus of the nanocomposites, which ranges from 1.42 to 13.58 GPa at a temperature of 25 °C. PV/PY-0.03ZS has uniform electronic microscopic structures, as demonstrated by a corresponding peak at the same frequency. The addition of ZS species drastically lowered the photoluminescence (PL) spectra of PV/PY-0.03ZS, indicating that ZS modulation inhibited electron-hole pair production.The PV/PY-0.03ZS composite removed brilliant cressyl blue (BCB) 97 % at a rate constant of 0.012 min. In visible light, the scavenger experiment showed that electrons were essential for BCB dye photodegradation over PV, PY, and 0.03 ZS. Reusing the same conditions had no effect on removal efficiency. A factorial design comprising sixteen experiments was used to investigate the effects of variables. This fits in with the sustainability axis, which suggests that the developed immobilized photocatalyst might be used in industrial-scale water treatment units instead of slurry reactors.
通过加入 ZnS 纳米粒子改变 PVDF/Ppy 的机械和发光特性,用于可见光光催化水处理:实验和理论方法
根据 XRD、FESEM 和 FTIR 测量结果,ZS 在 PV/PY 基体中精确整合并均匀分布。在 PV/PY 基体中加入 ZS 纳米粒子后,纳米复合材料的储能模量发生了显著变化,在 25 °C 温度下,储能模量从 1.42 GPa 到 13.58 GPa 不等。PV/PY-0.03ZS 具有均匀的电子微观结构,在相同频率下的相应峰值证明了这一点。ZS 物种的加入大大降低了 PV/PY-0.03ZS 的光致发光(PL)光谱,表明 ZS 调制抑制了电子-空穴对的产生。在可见光下,清除剂实验表明,与 PV、PY 和 0.03ZS 相比,电子对 BCB 染料的光降解至关重要。重复使用相同的条件对去除效率没有影响。我们采用了由 16 个实验组成的因子设计来研究变量的影响。实验结果表明,固定化光催化剂的光降解效率高于 PV、PY 和 0.03 ZS,这与可持续发展轴相吻合,表明所开发的固定化光催化剂可用于工业规模的水处理装置,而不是泥浆反应器。
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来源期刊
CiteScore
10.40
自引率
6.60%
发文量
639
审稿时长
29 days
期刊介绍: Journal of Industrial and Engineering Chemistry is published monthly in English by the Korean Society of Industrial and Engineering Chemistry. JIEC brings together multidisciplinary interests in one journal and is to disseminate information on all aspects of research and development in industrial and engineering chemistry. Contributions in the form of research articles, short communications, notes and reviews are considered for publication. The editors welcome original contributions that have not been and are not to be published elsewhere. Instruction to authors and a manuscript submissions form are printed at the end of each issue. Bulk reprints of individual articles can be ordered. This publication is partially supported by Korea Research Foundation and the Korean Federation of Science and Technology Societies.
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