TiO2毫米球可回收水处理催化材料的制备和性能研究
Fabrication and Photocatalytic Performance of Recyclable TiO2-Based Millimeter-Scale Spherical Photocatalysts for Water Treatment
摘要: 为解决纳米催化剂在水处理过程中难以回收且可能造成二次污染这一实际难题，本研究采用透明的磷酸氢二铝(Al(H2PO4)3)作为无机粘合剂，将纳米二氧化钛固定在毫米级球形载体表面，从而制备出基于二氧化钛的毫米级球形光催化剂。选取罗丹明B (RhB)和苯酚作为目标污染物，系统评估了各组分比例和环境条件对所制备材料催化活性的影响。结果表明，该TiO2毫米级球光催化剂对RhB和苯酚均表现出良好的降解性能，并在复杂的水环境中保持了令人满意的催化活性。成功开发出一种具有高稳定性和强催化活性的可回收毫米级球光催化剂。该材料在废水处理方面展现出广阔的应用前景，有望解决纳米催化剂在水处理中面临的回收困难、材料损失及稳定性差等工程难题。
Abstract: To address the practical challenge that nanocatalysts are difficult to recover during water treatment and may cause secondary pollution, transparent aluminum dihydrogen phosphate (Al(H2PO4)3) was used as an inorganic binder to immobilize nano-TiO2 on the surface of millimeter-scale spherical supports, thereby constructing TiO2-based millimeter-scale spherical photocatalysts. Rhodamine B (RhB) and phenol were selected as target pollutants to systematically evaluate the effects of composition ratio and environmental conditions on the catalytic activity of the prepared materials. The results show that the TiO2 millimeter-scale spherical photocatalysts exhibit good degradation performance toward both RhB and phenol and maintain satisfactory catalytic activity in complex aqueous environments. A recyclable millimeter-scale photocatalyst with high stability and strong catalytic activity was successfully developed. This material shows promising potential for wastewater treatment and is expected to address engineering problems associated with nanocatalysts in water treatment, such as difficult recovery, material loss, and poor stability.
文章引用：万佳宜. TiO2毫米球可回收水处理催化材料的制备和性能研究[J]. 材料科学, 2026, 16(6): 175-186. https://doi.org/10.12677/ms.2026.166149

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