Synthesis and characterization of multiwalled carbon nanotubes functionalized with chlorophyll-derivatives compounds extracted from Hibiscus tiliaceus

Recent innovations of ultrasound green technology in herbal phytochemistry: A review

“… [ [9] , [52] , [53] , [54] , [55] ] Hibiscus Hibiscus sabdariffa Hibiscus tiliaceus Ultrasonic cleaner bath Sonication nanostructures Chlorophyll and other phytochemical mixtures 500 Hz, 40 kHz 130 30–60 – Ultrasound can be used for fabricating of inexpensive, simple, eco-friendly hibiscus with ZnO and other nanostructures to extend their utility in different areas of nanotechnology. [ [21] , [56] ] Mulberry leaves Morus alba L. Ultrasonic probe sonotrode system Ultrasonic drying process Phytochemical mixture 20 130 5–15 20 US pretreatment enhances mulberry drying kinetics and reduces total energy consumption without affecting product quality. [ 57 ] Parsley leaves Petroselinum crispum Ultrasound bath Ultrasonic drying preprocess Phytochemical mixture 21 100–300 20 30 US pretreatment significantly reduced the drying time and consumed energy up to 29.8% and 33.6%.…”

“…Also, as a consequence of band gap reduction and surface area increase, the nanostructures showed better photocatalytic degradation performance with the hibiscus extract. In another study that investigated the use of Hibiscus tiliaceus chlorophyll with US to synthesis multi-walled carbon nanotubes [ 56 ]. The authors observed an increase in the interaction potential and covalent bonds formation with increasing of US time which led to an increase in the thickness of the nanotube by 160%.…”

“…The authors observed an increase in the interaction potential and covalent bonds formation with increasing of US time which led to an increase in the thickness of the nanotube by 160%. Thus, hibiscus phytochemicals are one of the promising approaches in the fabrication of nanoparticles [ 56 ].…”

Chlorophyllides: Preparation, Purification, and Application

“…Tostado-Plascencia et al synthesized carbon nanotubes functionalized with chlorophyllide derivatives and characterized their optical properties [184]. Hibiscus tiliaceus leaves were mixed with acetone and petroleum ether to extract chlorophyll a. Chlorophyll a solution was then incubated with potassium hydroxide to synthesize chlorophyllide a, which was used to synthesize carbon nanotubes.…”

The influence of treatment time on multi-walled carbon nanotubes functionalized by poly(ethylene glycol)

“…Multi-walled carbon nanotubes (MWCNTs) are very attractive candidates for many applications due to their extraordinarily properties such as high specific surface areas, high thermal conductivity, excellent electrical and mechanical properties [1][2][3][4]. These outstanding characteristics of MWCNTs have been investigated and applied for many fields such as scanning probe microscopy probes, field emission displays, micro-nano electronics, hydrogen storages, corrosion protection, adsorbents, ultrafiltration membranes, nanofluids, cathode materials and biological applications [5][6][7][8][9][10][11][12][13][14].…”