Controllable preparation of graphitic carbon nitride nanosheets via confined interlayer nanospace of layered clays

Current fundamental and applied research into clay minerals in China

“…On the one hand, innovating extraction and separation technology are a way out, but on the other, to use synthetic clay minerals offers a viable alternative (Zhang et al, 2010). Successful examples of synthetic clay minerals commercially produced in China are synthetic hectorite (the ideal chemical composition: Na 0.50-1.20 (Jiang et al, 2010) and synthetic mica (Chen and Peng, 1990). These synthetic clay minerals with well-designed chemical composition, structure and morphology under controllable synthetic conditions possess much improved properties in comparison with their natural counterparts and have practical applications, and thereby they have good marketplace in China.…”

“…Besides, supramolecular assembly of the layered nanoparticles is worth being used to manufacture advanced materials. Zhou's group (AMSC) of Zhejiang University of Technology has successfully commercialized a series of processes of synthetic clay minerals and has demonstrated that the structure of 'house-of cards' from delaminated platelets of synthetic clay minerals can be used as superhydrogels and films (Zhou et al, 2005;Jiang et al, 2010;Zhang et al, 2010;Zhou, 2011;Zhou et al, 2011a) and as space-confined reactors for tailoring the nucleation and growth of crystalline solids, for example zeolitic titanosilicate-1 materials (Xia et al, 2011). In this regard, an interesting study reported in this issue suggests that the synthetic layered double hydroxide (LDH) and natural clay minerals can be combined together to form a novel multifunctional material , in this issue).…”

Polymeres graphitisches Kohlenstoffnitrid als heterogener Organokatalysator: von der Photochemie über die Vielzweckkatalyse hin zur nachhaltigen Chemie

“…[67,[77][78][79] Aber selbst die Herstellung eines ideal kondensierten g-C 3 N 4 ist eine Herausforderung an sich, und bisher findet man eine Vielzahl verschiedener Syntheseversuche, die alle gewissen Einschränkungen aufweisen. [17,23,[80][81][82][83][84][85][86][87] Ein detaillierterer Vergleich dieser verschiedener Ansätze wurde erst kürzlich von Kroke, [29] Antonietti, [41] Blinov [60] und Matsumoto et al [88] verçffentlicht. Aufgrund des Fehlens von experimenteller Evidenz sind die Existenz eines graphitischen Materials mit der idealen Zusammensetzung C 3 N 4 sowie mçgliche Strukturmodelle immer noch Gegenstand der Diskussion.…”

Insight into formation of montmorillonite-hydrochar nanocomposite under hydrothermal conditions

“…Mt is a 2:1 clay mineral composed of aluminosilicate layers with exchangeable, hydrated cations in the interlayer spaces. Thus, the twodimensional layer and the expandable interlayer space have all been used as an inorganic template to produce a high surface area of carbonous material (Sonobe et al, 1990;Bakandritsos et al, 2004;Jiang et al, 2010). In addition, each aluminosilicate layer consists of two Si-O tetrahedral sheets sandwiching an Al-OH octahedral sheet by means of -Si-O-Al-O-Si-bonds (Bergaya and Lagaly, 2013).…”