Adsorption and photocatalytic properties of porphyrin loaded MIL-101 (Cr) in methylene blue degradation

被引:11
作者
Ghoochani, Samaneh Hashemi [1 ]
Heshmati, Abbas [1 ]
Hosseini, Hasan Ali [1 ]
Darroudi, Majid [2 ,3 ]
机构
[1] Payame Noor Univ, Chem Dept, Tehran 193954697, Iran
[2] Mashhad Univ Med Sci, Nucl Med Res Ctr, Mashhad, Razavi Khorasan, Iran
[3] Mashhad Univ Med Sci, Sch Med, Dept Med Biotechnol & Nanotechnol, Mashhad, Razavi Khorasan, Iran
关键词
Metal-organic framework; Photocatalyst; Adsorption; Dye removal; Porous material; METAL-ORGANIC FRAMEWORKS; FUNCTIONALIZED ZIRCONIUM MOF; REMOVAL; DYE; WATER; NANOPARTICLES; MUTAGENICITY; ADSORBENT; CATALYSIS; DIOXIDE;
D O I
10.1007/s11356-022-18640-1
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
In this study for the very first time, zinc tetraphenylporphyrin (ZnTPP) was loaded into MIL-101 (Zn[TPP]@MIL-101) to perform an adsorptive and photocatalytic dye removal. The physicochemical attributes of the catalyst were thoroughly determined by the usage of XRD, FTIR, FESEM, BET, UV-vis, and inductively coupled plasma (ICP). The obtained XRD pattern exhibited the phase purity of MIL-101 and its structural stability. The solid-phase diameter of the catalyst was observed to be similar to 270.76 +/- 119.95 nm, while its gas adsorption data was indicative of a decrease in the specific surface area after the loading of ZnTPP. The ICP analysis displayed the amount of encapsulated Zn[TPP] (similar to 17%) in MIL-101. The UV-vis confirmed the presence of Zn[TPP] in MIL-101 with the lack of any interferences or overlaps with the lambda(max) of methylene blue (MB) with the support. The dye removal of MB was investigated under dark conditions (adsorption) and UV light (photodegradation). The observed adsorption under dark conditions using Zn[TPP]@MIL-101 (99.27% yield) demonstrated a superior dye removal in comparison to the cases of photodegradation of MB by MIL-101 and Zn[TPP] @ MIL-101 or adsorption by MIL-101. In conformity to the gathered results, [ZnTPP] was able to increase the adsorption capacity at pH =7 at room temperature.
引用
收藏
页码:34406 / 34418
页数:13
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