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基于二氧化钛 (IV) 和海藻酸钠生物聚合物的光生物复合珠的制备与表征及其对碱性蓝 41 的吸附/光催化降解。

Elaboration and characterization of photobiocomposite beads, based on titanium (IV) oxide and sodium alginate biopolymer, for basic blue 41 adsorption/photocatalytic degradation.

机构信息

Centre de Recherche Scientifique et Technique en Analyses Physico-Chimiques, BP 384, Siège ex-Pasna Zone Industrielle, Bou-Ismail, CP 42004 Tipaza, Algeria; Laboratoire des Sciences du Génie des Procédés Industriels, Faculté de Génie Mécanique et de Génie des Procédés, Université des Sciences et de la Technologie Houari - Boumediene, BP no 32, el Alia Bab Ezzouar, 16111 Alger, Algeria; Laboratoire de Génie de la Réaction, Faculté de Génie Mécanique et de Génie des Procédés, Université des Sciences et de la Technologie Houari - Boumediene, BP no 32, el Alia Bab Ezzouar, 16111 Alger, Algeria.

Centre de Recherche Scientifique et Technique en Analyses Physico-Chimiques, BP 384, Siège ex-Pasna Zone Industrielle, Bou-Ismail, CP 42004 Tipaza, Algeria; Laboratoire de Génie de la Réaction, Faculté de Génie Mécanique et de Génie des Procédés, Université des Sciences et de la Technologie Houari - Boumediene, BP no 32, el Alia Bab Ezzouar, 16111 Alger, Algeria.

出版信息

Int J Biol Macromol. 2020 May 15;151:66-84. doi: 10.1016/j.ijbiomac.2020.02.159. Epub 2020 Feb 15.

DOI:10.1016/j.ijbiomac.2020.02.159
PMID:32070733
Abstract

This study provides the preparation and profound characterization of an eco-friendly photobiocomposite beads named, titanium (IV) oxide/calcium alginate (TiO/CaAlg), and the examination of their effectiveness for Basic Blue 41 (BB 41) adsorption/ photocatalytic degradation using sunlight like a renewable energy source. Chemical and physical characteristics of pure TiO, pure CaAlg and TiO/CaAlg beads were investigated using; X-ray diffraction (XRD), UV-visible diffuse reflectance spectra (UV-Vis DRS), scanning electron microscopy (SEM), attenuated total reflection spectroscopy (ATR), X-Ray photoelectron spectrometer (XPS), thermogravimetry (TGA) derivative thermogravimetry (DTG) and differential scanning calorimetry (DSC) analysis. Kinetic and isotherm models were evaluated using the non-linear model fitting analysis method. Effect of experimental parameters such as solution initial pH, BB 41 initial concentration, photobiocomposite dose on the BB 41 adsorption/photocatalytic degradation was investigated. Recycling capacity of TiO/CaAlg photobiocomposite beads was tested. Results show that TiO/CaAlg photobiocomposite is promising material for the BB 41 adsorption/photocatalytic degradation.

摘要

本研究提供了一种名为二氧化钛/海藻酸钠(TiO/CaAlg)的环保光生物复合珠粒的制备和深入表征,并考察了其在利用太阳光作为可再生能源的情况下对碱性蓝 41(BB 41)吸附/光催化降解的有效性。使用 X 射线衍射(XRD)、紫外-可见漫反射光谱(UV-Vis DRS)、扫描电子显微镜(SEM)、衰减全反射光谱(ATR)、X 射线光电子能谱(XPS)、热重分析(TGA)和差示扫描量热法(DSC)分析等方法对纯 TiO、纯 CaAlg 和 TiO/CaAlg 珠粒的化学和物理特性进行了研究。采用非线性模型拟合分析方法评价了动力学和等温线模型。考察了溶液初始 pH 值、BB 41 初始浓度、光生物复合材料用量等实验参数对 BB 41 吸附/光催化降解的影响。测试了 TiO/CaAlg 光生物复合材料珠粒的循环利用能力。结果表明,TiO/CaAlg 光生物复合材料是一种很有前途的 BB 41 吸附/光催化降解材料。

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