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Wu Y, Huang Y, Huang H, Muhammad Y, Huang Z, Winarta J, Zhang Y, Nie S, Zhao Z, Mu B. Porous Fe@C Composites Derived from Silkworm Excrement for Effective Separation of Anisole Compounds. ACS OMEGA 2019; 4:21204-21213. [PMID: 31867514 PMCID: PMC6921619 DOI: 10.1021/acsomega.9b02681] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Accepted: 11/18/2019] [Indexed: 05/12/2023]
Abstract
Silkworm excrement is a very useful biomass waste, composed of layer-structured fats and proteins, which are great precursors for carbon composite materials. In this work, new porous composites derived from silkworm excrement were prepared for selective separation of flavor 4-methylanisole from the binary 4-methylanisole/4-anisaldehyde mixture. In particular, the silkworm excrement, possessing a unique nanosheet structure, is converted into a graphite-like carbon by a simple calcination strategy followed by a metal-ion-doping procedure. This Fe@C composite exhibits a special nano-spongy morphology, anchoring Fe3C/Fe5C2 on the carbon nanosheets. Density functional theory simulations showed that 4-methylanisole presents a stronger π-π interaction and attraction forces with sp2 carbon nanosheets in Fe@C composites than 4-anisaldehyde. The selective adsorption experiments further confirmed that the Fe@C composites exhibited a 4-methylanisole capacity of 7.3 mmol/g at 298 K and the highest selectivity of 17 for an equimolar 4-methylanisole/4-anisaldehyde mixture among the examined adsorbents including MOFs and commercial activated carbon materials, which demonstrates the potential of this low-cost and eco-friendly porous carbon material as a promising sustainable adsorbent.
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Affiliation(s)
- Yuxiang Wu
- School
of Chemistry and Chemical Engineering and Guangxi Key Laboratory for Agro-Environment
and Agro-Product Safety, Guangxi University, Nanning 530004, China
| | - Yan Huang
- Guangzhou
Huafang Tobacco Flavors Co., Ltd., Guangzhou 510530, China
| | - Hong Huang
- School
of Chemistry and Chemical Engineering and Guangxi Key Laboratory for Agro-Environment
and Agro-Product Safety, Guangxi University, Nanning 530004, China
| | - Yaseen Muhammad
- Institute
of Chemical Sciences, University of Peshawar, Peshawar, Khyber Pakhtunkhwa 25120, Pakistan
| | - Zuqiang Huang
- School
of Chemistry and Chemical Engineering and Guangxi Key Laboratory for Agro-Environment
and Agro-Product Safety, Guangxi University, Nanning 530004, China
| | - Joseph Winarta
- School
for Engineering of Matter, Transport, and Energy, Arizona State University, Tempe, Arizona 85287, United States
| | - Yanjuan Zhang
- School
of Chemistry and Chemical Engineering and Guangxi Key Laboratory for Agro-Environment
and Agro-Product Safety, Guangxi University, Nanning 530004, China
| | - Shuangxi Nie
- School
of Chemistry and Chemical Engineering and Guangxi Key Laboratory for Agro-Environment
and Agro-Product Safety, Guangxi University, Nanning 530004, China
| | - Zhongxing Zhao
- School
of Chemistry and Chemical Engineering and Guangxi Key Laboratory for Agro-Environment
and Agro-Product Safety, Guangxi University, Nanning 530004, China
- Guangzhou
Huafang Tobacco Flavors Co., Ltd., Guangzhou 510530, China
- E-mail: (Z.Z.)
| | - Bin Mu
- School
for Engineering of Matter, Transport, and Energy, Arizona State University, Tempe, Arizona 85287, United States
- E-mail: (B.M.)
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