A Reusable, Biomass-Derived, and pH-Responsive Collagen Fiber Based Oil Absorbent Material for Effective Separation of Oil-in-Water Emulsions

2021 ◽  
pp. 127906
Author(s):  
Zetian Zhang ◽  
Guochen Dai ◽  
Yang Liu ◽  
Weiwei Fan ◽  
Kaifeng Yang ◽  
...  
Keyword(s):  
Collagen Fiber ◽  
Ph Responsive ◽  
Absorbent Material ◽  
Effective Separation ◽  
Oil In Water ◽  
Oil Absorbent

scholarly journals Stabilization and Release of Palm Tocotrienol Emulsion Fabricated Using pH-Sensitive Calcium Carbonate

Foods ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 358
Author(s):  
Phui Yee Tan ◽  
Beng Ti Tey ◽  
Eng Seng Chan ◽  
Oi Ming Lai ◽  
Hon Weng Chang ◽  
...  
Keyword(s):  
Calcium Carbonate ◽  
Droplet Size ◽  
Entrapment Efficiency ◽  
Ph Sensitive ◽  
Emulsion System ◽  
Ph Responsive ◽  
Small Droplet ◽  
Homogenization Time ◽  
Oil In Water ◽  
Ph Range

Calcium carbonate (CaCO3) has been utilized as a pH-responsive component in various products. In this present work, palm tocotrienols-rich fraction (TRF) was successfully entrapped in a self-assembled oil-in-water (O/W) emulsion system by using CaCO3 as the stabilizer. The emulsion droplet size, viscosity and tocotrienols entrapment efficiency (EE) were strongly affected by varying the processing (homogenization speed and time) and formulation (CaCO3 and TRF concentrations) parameters. Our findings indicated that the combination of 5000 rpm homogenization speed, 15 min homogenization time, 0.75% CaCO3 concentration and 2% TRF concentration resulted in a high EE of tocotrienols (92.59–99.16%) and small droplet size (18.83 ± 1.36 µm). The resulting emulsion system readily released the entrapped tocotrienols across the pH range tested (pH 1–9); with relatively the highest release observed at pH 3. The current study presents a potential pH-sensitive emulsion system for the entrapment and delivery of palm tocotrienols.

Highly hydrophobic and ultralight graphene aerogel as high efficiency oil absorbent material

2017 ◽  
Vol 5 (2) ◽  
pp. 1957-1963 ◽  
Author(s):  
Yubo Cheng ◽  
Pei Xu ◽  
Wei Zeng ◽  
Chenxi Ling ◽  
Shuo Zhao ◽  
...  
Keyword(s):  
High Efficiency ◽  
Graphene Aerogel ◽  
Absorbent Material ◽  
Oil Absorbent ◽  
Highly Hydrophobic

Effective separation of surfactant-stabilized crude oil-in-water emulsions by using waste brick powder-coated membranes under corrosive conditions

2020 ◽  
Vol 22 (4) ◽  
pp. 1345-1352 ◽  
Author(s):  
Guogui Shi ◽  
Yongqian Shen ◽  
Peng Mu ◽  
Qingtao Wang ◽  
Yaoxia Yang ◽  
...  
Keyword(s):  
Crude Oil ◽  
Effective Separation ◽  
Brick Powder ◽  
Oil In Water ◽  
Coated Membranes

Underwater superoleophobic WBP-coated membranes were employed to effectively separate crude oil-in-water emulsions under corrosive conditions.

Salt-Induced Fabrication of Superhydrophilic and Underwater Superoleophobic PAA-g-PVDF Membranes for Effective Separation of Oil-in-Water Emulsions

2013 ◽  
Vol 53 (3) ◽  
pp. 856-860 ◽  
Author(s):  
Wenbin Zhang ◽  
Yuzhang Zhu ◽  
Xia Liu ◽  
Dong Wang ◽  
Jingye Li ◽  
...  
Keyword(s):  
Effective Separation ◽  
Oil In Water

scholarly journals Fabrication of Superhydrophobic Magnetic Sawdust as Effective and Recyclable Oil Sorbents

Materials ◽  
2019 ◽  
Vol 12 (20) ◽  
pp. 3432
Author(s):  
Shumin Fan ◽  
Shuai Pei ◽  
Tianyu Shen ◽  
Guangri Xu ◽  
Yuanchao Li ◽  
...  
Keyword(s):  
Low Cost ◽  
Absorption Capacity ◽  
Magnetic Characteristics ◽  
Formaldehyde Resin ◽  
Water Contact ◽  
Long Term Stability ◽  
Oil Sorbent ◽  
Oil In Water ◽  
Oil Absorbent

In this paper, a novel superhydrophobic magnetic sawdust (SMSD) was fabricated as an oil sorbent. The SMSD was functionalized with Fe3O4 nanoparticles using melamine formaldehyde resin (MFR) as a coupling agent and subsequently hydrophobically-treated with hexadecyltrimethoxysilane (HDTMS). The SMSD showed excellent superhydrophobicity with the water contact angle of 155.3 ± 0.9°. Meanwhile it had remarkable environmental durability, long-term stability, and mechanical durable properties. Taking advantage of its magnetic characteristics, the SMSD could be easily controlled to absorb oil to separate oil–water mixtures with high oil absorption capacity and good reusability. Moreover, the emulsion was successfully separated by SMSD, including water-in-oil and oil-in-water emulsions. This study developed an effective oil absorbent, which was low cost and environmentally-friendly.

A pH-responsive superwetting nanostructured copper mesh film for separating both water-in-oil and oil-in-water emulsions

RSC Advances ◽  
2016 ◽  
Vol 6 (76) ◽  
pp. 72317-72325 ◽  
Author(s):  
Zhongjun Cheng ◽  
Chong Li ◽  
Hua Lai ◽  
Ying Du ◽  
Hongwei Liu ◽  
...  
Keyword(s):  
Ph Responsive ◽  
Emulsified Oil ◽  
Oil In Water ◽  
Oil Water ◽  
Copper Mesh ◽  
Nanostructured Copper

A new pH-responsive nanostructured copper mesh film was reported for the bidirectional separation of emulsified oil/water mixtures.

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