Sharma Deepti, Mishra Jai Prakash, Dhayal Veena
Department of Biosciences, Manipal University Jaipur, Jaipur, India 303007.
Department of Electronics & Communication Engineering, Manipal University Jaipur, Jaipur, India 303007.
J Environ Health Sci Eng. 2023 Nov 23;22(1):167-178. doi: 10.1007/s40201-023-00884-9. eCollection 2024 Jun.
modification of cellulose fibers with titania nanoparticles (TiO NPs) (TiO NPs-cellulose) was carried out via the sol-gel process using titania sol and fibers of cellulose. Cellulose fibers were extracted from wheat straw, an agricultural waste material, whereas titania sol was prepared from titanium(IV) acetoximate, [Ti{ONC(CH)}]. The synthesized TiO NPs-cellulose composite was characterized by FT-IR, SEM-EDX, and XRD analyses. The obtained results exposed that TiO NPs were homogeneously dispersed over the surface of cellulose fibers. A study was conducted to compare the photocatalytic activities of TiO NPs-cellulose composite and TiO NPs towards the degradation of methylene blue and methyl orange dyes under sunlight, and it was observed that the photo-degradation of methylene blue (99.99%) and methyl orange (80.73%) within 160 min is higher in the presence of TiO NPs-cellulose composite than TiO NPs. The adsorption capabilities of TiO NPs-cellulose composite towards Pb, Cd, and Cr toxic metal ions were also examined, and it was found 44.73 mg. g (89.46%), 38.82 mg. g (77.65%), and 4.42 mg. g (8.85%), respectively. Removal of pollutants from textile industrial effluent were also investigated using TiO NPs-cellulose composite under sun light. The results obtained were very promising which shows potential of TiO NPs-cellulose composite as an efficient photocatalyst and absorbent for real time applications.
The online version contains supplementary material available at 10.1007/s40201-023-00884-9.
通过溶胶 - 凝胶法，使用二氧化钛溶胶和纤维素纤维对纤维素纤维进行二氧化钛纳米颗粒（TiO NPs）改性（TiO NPs - 纤维素）。纤维素纤维从小麦秸秆（一种农业废料）中提取，而二氧化钛溶胶由乙酰丙酮钛（IV）[Ti{ONC(CH)}]制备。通过傅里叶变换红外光谱（FT - IR）、扫描电子显微镜 - 能谱分析（SEM - EDX）和X射线衍射（XRD）分析对合成的TiO NPs - 纤维素复合材料进行表征。所得结果表明，TiO NPs均匀分散在纤维素纤维表面。进行了一项研究，比较TiO NPs - 纤维素复合材料和TiO NPs在阳光下对亚甲基蓝和甲基橙染料降解的光催化活性，观察到在TiO NPs - 纤维素复合材料存在下，160分钟内亚甲基蓝（99.99%）和甲基橙（80.73%）的光降解率高于TiO NPs。还研究了TiO NPs - 纤维素复合材料对Pb、Cd和Cr有毒金属离子的吸附能力，分别为44.73 mg·g（89.46%）、38.82 mg·g（77.65%）和4.42 mg·g（8.85%）。还使用TiO NPs - 纤维素复合材料在阳光下研究了从纺织工业废水中去除污染物的情况。所得结果非常有前景，表明TiO NPs - 纤维素复合材料作为一种高效光催化剂和吸收剂在实际应用中的潜力。
在线版本包含可在10.1007/s40201 - 023 - 00884 - 9获取的补充材料。
