PMID- 32579426 OWN - NLM STAT- MEDLINE DCOM- 20220125 LR - 20221207 IS - 1479-487X (Electronic) IS - 0959-3330 (Linking) VI - 43 IP - 3 DP - 2022 Jan TI - Clearance of methylene blue by CdS enhanced composite hydrogel materials. PG - 355-366 LID - 10.1080/09593330.2020.1788170 [doi] AB - Hydrogel material is considered to be one of the effective adsorbents widely used to remove organic pollutants. However, the poor mechanical properties of some hydrogels limit their applications. Herein, we prepared composite hydrogels, for which acrylic acid (AA) and acrylamide (AM) were cross-linked and polymerised as the main substrate with adsorption function, while CdS nanoparticles were mainly used as reinforced material. Scanning electron microscope (SEM), Fourier transform infrared spectrometer (FTIR), two-dimensional infrared vibrational echo spectroscopy (2D-IR), and thermal gravimetric analyzer (TGA) were used to determine the physical and chemical structures of the hydrogels. The effects of the composition of AA, AM, and CdS on the mechanical properties and adsorption behaviours of the hydrogels were investigated. Besides, based on the great potential photocatalytic application value for wastewater remediation under the sunlight of CdS, the influence of the CdS doping amount on the photocatalytic property was also studied. As a result, when the mass ratio of AA to AM was 5:5, the hydrogel showed the best mechanical properties, and along with increasing the amount of CdS, the mechanical strength of the hydrogel was significantly enhanced from 0.445 MPa to 1.014 MPa. Besides, the composite hydrogels showed high adsorption and photocatalytic degradation synergistic clearance effect on methylene blue. Thus, the introduction of CdS photocatalytic nanoparticles may be an efficient and economical approach towards bifunctional hydrogel materials with enhanced mechanical property and photocatalytic degradation for wastewater remediation. FAU - Chen, Lei AU - Chen L AD - College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, People's Republic of China. FAU - He, Chao AU - He C AD - College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, People's Republic of China. FAU - Yin, Jiarui AU - Yin J AD - College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, People's Republic of China. FAU - Chen, Shengqiu AU - Chen S AD - College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, People's Republic of China. FAU - Zhao, Weifeng AU - Zhao W AD - College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, People's Republic of China. FAU - Zhao, Changsheng AU - Zhao C AD - College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, People's Republic of China. AD - National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, People's Republic of China. LA - eng PT - Journal Article DEP - 20200709 PL - England TA - Environ Technol JT - Environmental technology JID - 9884939 RN - 0 (Hydrogels) RN - 0 (Waste Water) RN - T42P99266K (Methylene Blue) SB - IM MH - Adsorption MH - *Hydrogels MH - Kinetics MH - *Methylene Blue MH - Spectroscopy, Fourier Transform Infrared MH - Wastewater OTO - NOTNLM OT - Composite hydrogel OT - Dye removal OT - Enhanced mechanical property OT - Methylene blue EDAT- 2020/06/25 06:00 MHDA- 2022/01/27 06:00 CRDT- 2020/06/25 06:00 PHST- 2020/06/25 06:00 [pubmed] PHST- 2022/01/27 06:00 [medline] PHST- 2020/06/25 06:00 [entrez] AID - 10.1080/09593330.2020.1788170 [doi] PST - ppublish SO - Environ Technol. 2022 Jan;43(3):355-366. doi: 10.1080/09593330.2020.1788170. Epub 2020 Jul 9.